Anti-Neutrophil Cytoplasmic Antibody, IgG
Semi-Quantitative Indirect Fluorescent Antibody
New York DOH Approval Status
This test is New York DOH approved.
- Patient Preparation
- Serum separator tube.
- Specimen Preparation
- Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.15 mL)
- Storage/Transport Temperature
- Unacceptable Conditions
- Plasma, urine, or other body fluids. Contaminated, hemolyzed, or severely lipemic specimens.
- After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
<1:20: Not significant
Neutrophil Cytoplasmic Antibodies (C-ANCA=granular cytoplasmic staining, P-ANCA=perinuclear staining) are found in the serum of over 90% of patients with certain necrotizing systemic vasculitides, and usually in less than 5% of patients with collagen vascular disease or arthritis.
If the ANCA screen detects antibodies at a 1:20 dilution or greater, then a titer to end point will be added. Additional charges apply. ANCA IFA is simultaneously tested on ethanol- and formalin-fixed slides to allow differentiation of C- and P-ANCA patterns.
86255; if positive, add 86256
|Component Test Code*||Component Chart Name|
|0050811||Anti-Neutrophil Cytoplasmic Ab, IgG|
- Wegner's Granulomatosis